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Keywords: contact angle
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Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206294-MS
.... To this end, glycine was compared with two carboxylates (acetate and formate) with/without adding hydrogen chloride (HCl) for adjusting the solution pH. Note that the amino group is the only difference between glycine and acetate. Contact-angle experiments on calcite were carried out at 347 K and atmospheric...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206379-MS
... angle during primary oil injection was set at zero degrees, while during the primary water injection cycle, the contact angles were changed to mimic the natural aging process of wettability alteration. The advantage of using pore-network simulations is that a precise control of wettability and pore...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206202-MS
... Abstract We present two methods to measure contact angles inside porous media using high-resolution images. The direct determination of contact angle at the three-phase contact line is often ambiguous due to uncertainties with image segmentation. Instead, we propose two alternative approaches...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-206260-MS
... and the oil displacement effects of ultralow concentration ODA-MoS 2 nanosheets. Experimental results indicate that the oil-wet solid surface (a contact angle of 130°) can transform into the neutral-wet solid surface (a contact angle of 90°) within 120 hrs after 50 mg/L ODA-MoS 2 nanosheets treatment...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 21–23, 2021
Paper Number: SPE-205910-MS
... and non-ionic surfactant in low-salinity brine. Furthermore, ketone improved the core wettability by reducing the contact angle to 43.9° from 50.7° in the low-salinity brine experiment. In addition, the low-salinity brine systems caused mineral dissolution, which created an alkali environment confirmed...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201492-MS
... first aged in dead Eagle Ford crude oil at high temperature to attain oilwet characteristics. The oil wetness of shale samples was verified by measuring contact angles of water droplets in air. Then the samples were immersed in CO 2 or CO 2 -surfactant solution for 16 h at 4000 psi and 80 °C. Contact...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201482-MS
... as a surrogate of their wetting state, as observed by combining zeta potential and contact angle measurements with imbibition and coreflooding experiments ( Myint and Firoozabadi 2015 ; Hao et al. 2019 ; Liu and Wang 2020 ). Hence, the wettability alteration of carbonate rocks has been related to the rock...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201458-MS
... is stronger. The coexistence curves and saturation pressures in nanopores with different fluid-solid force are presented which can be characterized by using contact angle. Finally, the phase behavior in a complex pore structure is calculated. This work illustrates that implementing capillary pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201570-MS
... on the relative value of repulsion and attraction controlled by the pore-wall wettability. Finally, the contact angle of the pore surface is calculated by a DLVO theory (describing gas/water/solid interactions) related to the fluid/pore-wall interaction properties. The continuous viscosity profile of fluid...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 26–29, 2020
Paper Number: SPE-201754-MS
... and surfactant aided spontaneous imbibition. The low salinity brine composition was optimized using zeta potential, contact angle experiments, and wettability index calculations. Significant surface reactions on dolomite rocks were observed at the salinity of 2500 ppm. Thirty-seven surfactants were evaluated...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195871-MS
... into the surrounding matrix. One is 3-pentanone, a symmetric short ketone, and the other is 2-ethylhexanol-4PO-15EO, a non-ionic surfactant with an ultra-short hydrophobe. They were used as low-concentration additives (approximately 1 wt%) to reservoir brine (RB) in this research. Contact-angle experiments with oil...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195880-MS
.... Upstream Oil & Gas Efficiency incremental oil saturation Fluid Dynamics Wolfcamp oil saturation flow in porous media concentration contact angle enhanced recovery final oil saturation experiment surfactant injection surfactant solution Oil Recovery flowback saturation permeability...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195907-MS
... that increase waterflooding oil recovery in carbonate reservoirs. All experiments used a heavy-oil sample taken from a carbonate reservoir. Two amino acids were tested, glycine and β-alanine. Contact angle experiments with oil-aged calcite were performed at room temperature with deionized water...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195931-MS
... in production enhancement in the Wolfcamp formation. Eight SASI experiments were performed at reservoir temperature using different surfactants on quartz- and carbonate-rich side-wall core samples obtained from the Wolfcamp formation. Contact angle (CA), interfacial tension (IFT), and zeta potential were...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-195982-MS
... experiments, zeta potential, contact angle, interfacial tension (IFT), and pH measurements at ambient and reservoir conditions were performed to investigate the influence of the rock composition and brine/CO 2 mixtures at different pH values for low salinity water-CO 2 EOR (LSW-CO 2 EOR) applications...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-199774-STU
... gave indicative suggestions on the selection of surfactant and engineering application design for a surfactant based EOR project in shale oil reservoirs. Upstream Oil & Gas enhanced recovery experiment ift surf contact angle recovery factor imbibition core plug spontaneous imbibition...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-199763-STU
... experimental procedures of core/rock analysis for estimating wettability. The paper explores the experimental analysis of the measuring contract angle in various bioturbated samples. Contact angles of both oil-wet and water-wet cores were measured considering time and gradient factors. Capillary pressure...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-199772-STU
... and procedure to quantify contact angle distributions inside of porous media with a controlled level of heterogeneity in roughness and mineralogy. This experiment consists of visualizing the in-situ contact angle distribution of the aqueous phase inside a three-dimensional carbonate micromodel. Using Micro...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 30–October 2, 2019
Paper Number: SPE-196058-MS
... characterization Foam static tests in vials enhanced recovery friction stability evolution fracture Upstream Oil & Gas contact angle foam propagation formulation foam stability propagation complex reservoir criteria instability wettability foam steady state regime destabilization...

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